Ecuadorian architects <a href="http://www.arqsaez.com/" target="_blank">Jose María Sáez</a>&nbsp;and David Barragán designed and built this sprawling <a href="http://inhabitat.com/architecture/prefab-housing/">prefab home</a> using 900 <a href="http://inhabitat.com/tag/lego/">LEGO</a>-like concrete blocks. The 40-inch-long bricks are stacked to create shelves, planters, stairs, garden fences and regular walls. The designers created multiple micro-climates that regulate humidity levels and temperature by either filling the gaps between the blocks or leaving them open to the outdoors.

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Casa Pentimento Jose María Sáez David Barragán

Casa Pentimento is a dwelling placed on a gentle slope that is made almost entirely from <a href="http://inhabitat.com/frank-lloyd-wrights-iconic-la-miniatura-millard-house-now-up-for-sale-in-pasadena-california/" target="_blank">precast concrete modules</a>.

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Casa Pentimento Jose María Sáez David Barragán

The concrete modules simultaneously determine the home's structure and its relationship with the terrain.

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Casa Pentimento Jose María Sáez David Barragán

The stacked concrete blocks are left with gaps in some areas to create semi-transparent walls.

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Casa Pentimento Jose María Sáez David Barragán

A concrete platform serves as foundations and adapts to the topography of the site.

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Casa Pentimento Jose María Sáez David Barragán

The modules were designed with one flat side that creates a normal wall when stacked, while the other side is notched and can serve as shelves, planters or mounting surfaces for furniture.

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Casa Pentimento Jose María Sáez David Barragán

This modular system is similar to the already tested two-part brick system specifically designed for humid regions like Ecuador.

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Casa Pentimento Jose María Sáez David Barragán

Cost-effective and dynamic, the LEGO-like building system helps regulate heat loss and humidity while creating diverse and pleasant living spaces.

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Casa Pentimento Jose María Sáez David Barragán

On the outside the structure is a neutral grid that camouflages like a fence or hedge.

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Casa Pentimento Jose María Sáez David Barragán

The gaps between precast pieces are left open at some points and closed in others with transparent or translucent acrylic and wooden strips.

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Casa Pentimento Jose María Sáez David Barragán

Precast pieces are inserted into steel rods anchored with epoxy glue to the platform.

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Casa Pentimento Jose María Sáez David Barragán

Ecuadorian architects Jose María Sáez and David Barragán designed and built this sprawling prefab home using 900 LEGO-like concrete blocks. The 40-inch-long bricks are stacked to create shelves, planters, stairs, garden fences and regular walls. The designers created multiple micro-climates that regulate humidity levels and temperature by either filling the gaps between the blocks or leaving them open to the outdoors.